Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 79, NWS Lubbock, TX

May 22, 1997Castro County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at May 22, 1997, 7:15 PM CDT for Castro County, Texas. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 22, 1997, 7:15 PM CDT (00:15 UTC)
Expired
May 22, 1997, 8:05 PM CDT
In force
50 min
Issued by
NWS Lubbock, TX
Area
Whole counties

County Castro County, TX

The radar

The Amarillo radar (KAMA), 93 km from the middle of the area, began a volume at 00:17 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.3 hours before the alert went out and 93 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Amarillo Airport, TX at 00:00Z on 1997-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1543 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 1997-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1543 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
937 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
358 m²/s²
Significant tornado parameter
1.4
Supercell composite
9.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KLBB 230015 RRA
SVRLBB
TXC069-230105-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
715 PM CDT THU MAY 22 1997

THE NATIONAL WEATHER SERVICE IN LUBBOCK TX HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 805 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN THE TEXAS PANHANDLE

   ...CASTRO COUNTY
 
AT 710 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY LUBBOCK
DOPPLER RADAR 12 MILES EAST OF DIMMITT OR IN THE VICINITY OF
NAZARETH MOVING EAST NORTHEAST AT 15 MPH.

ANOTHER POSSIBLE SEVERE THUNDERSTORM WAS INDICATED JUST SOUTH OF
DIMMITT.

LARGE HAIL IS LIKELY WITH THESE STORMS.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

RB/JL

The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 7:32 PM CDTSevere Thunderstorm WarningLUBSwisher63 min
May 22, 8:09 PM CDTSevere Thunderstorm WarningLUBCastro46 min
May 22, 8:10 PM CDTTornado WarningLUBSwisher35 min
May 22, 8:32 PM CDTFlash Flood WarningLUBSwisher118 min
May 22, 8:48 PM CDTSevere Thunderstorm WarningLUBSwisher62 min
May 22, 9:47 PM CDTSevere Thunderstorm WarningLUBSwisher43 min
May 22, 10:34 PM CDTSevere Thunderstorm WarningLUBHale, Swisher46 min
May 23, 4:20 PM CDTSevere Thunderstorm WarningLUBHall65 min
May 23, 5:08 PM CDTSevere Thunderstorm WarningLUBBriscoe37 min
May 23, 5:47 PM CDTSevere Thunderstorm WarningLUBBriscoe, Hall48 min
May 23, 6:19 PM CDTFlash Flood WarningLUBBriscoe, Hall2 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.